I doubt that you can name an Indiana State park that I haven't either camped at or worked on some project as a unpaid volunteer Naturalist. I can say most all have some very good campgrounds which make them very popular. Some parks the bathroom facilities are showing the wear from all the traffic. Some renovations have begun in many parks.
With that said I too have seen problems more with people, not the parks. It absolutely galls me to see so many people who are too lazy to take their trash to a dumpster so they leave it on site or throw it in a smoldering fire pit.
As for the rowdy campers, most camp hosts will not risk their life by stepping in. You can ask them to contact a Ranger or call a Ranger yourself.
Mike you are in NW Indiana and the parks closest to you are also close to Chicago and get a huge influx of the surrounding population. I can tell you that there are many, many very nice IN DNR properties that you can have a wonderful relaxing time most weekends.